THE PROPERTY IS UNDERLAIN BY A BASIN OF THIN- BEDDED EOCENE AGE SHALE, SANDSTONE, ARKOSE, AND CONGLOMERATE. THE SEDIMENTARY SEQUENCE IS UNDER- LAIN BY PRE-TERTIARY AGE COAST RANGE GRANITIC ROCKS AND POSSIBLY OTHER MESOZOIC OR EARLIER FORMATIONS. WEATHERED ARKOSE IS PRESENT AT THE BASE OF THE FORMATION AND WEATHERING IS ALSO APPARENT IN GRANITE. COAL IN BROWN BEDS OCCURS IN SHALE AND SANDSTONE WITHIN A FEW METRES OF WEATHERED BASEMENT ROCKS. SIGNIFICANT VALUES OF GERMANIUM ARE PRESENT IN THE COAL IN THE BROWN BEDS. UPGRADING OF THE GERMANIUM ORE FROM 0.007% TO 3% WAS ACHIEVED THROUGH FROTH FLOATATION AND SIROSMELT TECHNOLOGY.